Perforating machine with scrap removal means



w. F. HUCK 2 959 991 PERFORA'TING MACHINE WITH SCRAP REMOVAL MEANS Nov. 15, 1960 Filed Sept. 28, 1956 INVENTOR W/LL/AM E H CK BY W ATTORNEY PERFORATING MACHINE WITH SCRAP REMOVAL MEANS William F. Huck, Forest Hills, N.Y., assignor t Huck Co., New York, N.Y., a partnership composed of William F. Huck, Alexander J. Albrecht, and Stephen S. Wekeman Filed Sept. 28, 1956, Ser. No. 612,652

2 Claims. (Cl. 83-422) This invention relates to perforating punch machines and more particularly to perforating machines of the type used for punching holes in pieces of material; for example, pattern punching of paper sheets or the like.

In certain commercial operations, various legal and fiscal documents, papers, checks and the like are voided or cancelled by punching a plurality of holes in the paper. In some large commercial organizations the amount of such paper to be voided or cancelled by perforations each day is very large, and it is an object of this invention to provide a machine which will perforate a large amount of individual pieces of paper or other material with the minimum amount of attendence to the machine.

It is another object of this invention to provide a perforating machine of the rotary type utilizing a plurality of punches cooperating with a like plurality of openings.

It is another object of this invention to provide a rotary perforating machine which is automatic and continuous in operation regardless of the amount of material to be perforated which is fed into the machine.

It is another object of this invention to provide a perforating machine which is capable of handling rapidly a large number of pieces to be perforated, and will insure that each piece will be perforated properly, regardless of the speed with which the pieces are passed through the machine, and whether singly or in stacks.

It is another object of this invention to provide a perforating machine which will operate efficiently for long periods of time Without difficulty from clogging or wear of various elements of the machine.

The above and other objects and advantages of the invention will become apparent when the following specification is read in conjunction with the attached drawings, in which:

Figure l is a side elevation, partly in vertical crosssection, of a machine embodying this invention.

Figure 2 is a horizontal sectional view taken along the plane 22 of Figure 1.

Referring to the drawings, and first to Figure 1 in particular, the reference numeral 19 indicates a base plate upon which is mounted a housing 12 containing the reduction gearing of a power source or gear motor of conventional design. Secured to the upper portion of the housing 12 by means of bolts 14 is a second housing 16 which encloses the perforating mechanism per se.

The motor or power source 13 drives the gearing in the housing 12 which has extending therefrom a vertical output or drive shaft 18. A punch cylinder 29 is fastened to the drive shaft 18 by means of a key 22. Securely fitted, by means of shrink fitting or the like, on the cylinder 20 is a punch sleeve or shell 24. Extending perpendicularly from the outer surface of the sleeve 24 are a plurality of cylindrically shaped perforator pins or punches 26. As seen in Figure 1 the sleeve 24 is provided with a plurality of helical rows of the perforator pins 26; however, the arrangement of pins is governed ateiit' only by the nature of the punching pattern desired. The

mounted for rotation in a pair of flanged sleeve bearings 39 and 32. The lower bearing 30 is securely mounted on the perforator mechanism housing 16, while the upper bearing 32 is mounted in a bearing support 34 which is fastened to the housing 16 by means of bolts 36. To

provide means for adjusting the alignment of bearing support 34, shims are located between the bearing sup.

port 34 and the housing 16.

Mounted on the reduced diameter upper end of the cylinder 29 is a spur gear assembly made up of a stepped inner ring 41 fastened to the cylinder 20 as by key 42. Fitted upon the stepped inner ring 40 is an outer ring gear 44; the inner ring 40 and the outer ring gear 44 being held securely in their proper relative positions by a pressure disc or washer 46 which is clamped to both the inner ring 40 and the upper end of cylinder 20 by means of bolts 48 and 50 respectively. The pressure disc 42 is sufficiently large in diameter to bear against the ring gear 44.

Adjacent to the cylinder assembly and parallel thereto is a hollow cylinder 52 upon which is shrink-fitted a punch sleeve 54. Both ends of the cylinder 52 are narrowed as indicated by the reference numerals 56 and 58. A gear 69 is mounted upon the upper narrowed portion 58 of the cylinder 52 by means of a key and a lock nut 64. The gear 69 meshes with and is driven by the ring gear 44.

The gear 69 is provided with a cooperating antibacklash gear 66 which is mounted concentrically with gear 69 on the narrowed portion 58 of the cylinder 52 and is adjustably positioned rotatably with respect to the gear 69 by bolts 68 passing through enlarged openings in the antibacklash gear 66. The gear assembly just described may alternatively be of the type illustrated and described in the copending patent application of William F. Huck, Ser. No. 638,052, filed February 4, 1957, now Patent No. 2,911,847 of November 10, 1959.

The sleeve 54 is provided with a plurality of holes as indicated at 72, into which the corresponding perforating pins 26 are to fit when the two cylinder assemblies are rotated. The cylinder 52 is journaled at the narrowed ends 56 and SS in flanged sleeve bearings similar to 30 and 32. The upper sleeve bearing '76 is secured in a bearing support similar to bearing support 34 and which is mounted upon the housing 16 by means of bolts 82.

As stated above, the cylinder 52 is hollow along its entire length, and in this space is located a flat spiral member 86 supported in a vertcial position from a cap member 38 removably fastened to the housing 16 as by means of studs 99. The purpose of the stationary spiral member will be explained below.

The material, sheets, or strips of material to be perforated must be fed between the cylinders so that as the cylinders rotate, the material to be perforated will be acted upon and pierced by a plurality of perforating pins 26 as those pins enter into the corresponding openings 72 in the cylinder sleeve 54. To feed the material or articles into the perforating machine the casing 16 is provided at its central portion with a feed chute 92, see Figure 2, having a section 94 within the housing 16 which is directed between the punch cylinders. A stripper plate or blade 96 secured to the housing 16 by bolts 98 strips the perforated sheets from the punch cylinder and guides the perforated sheets or strips out of the unit through an exit chute positioned opposite the feed Patented Nov. 15, 1960 V 3 chute 92 and fastened to the housing 16 as by means of bolts 102.

The stationary spiral member 86 located within the hollow cylinder will tend to move the punched-out or perforated discs or particles in an upward vertical direction. This upward or lifting movement of the punchedout discs of material prevents the clogging of the escape opening 104 in the lower end of the hollow cylinder 52. As the punchings pass into the hollow cylinder 52 they will drop through eXit 104- into chute 166. If the exit clogs, and since the body of punchings will be rotating around blade 86, the latter will cause them to lift up and clear the opening.

If a large quantity of slips or sheets are to be fed into the machine, the stack is fed manually until the leading edge is engaged by the perforating pins 26, after which the engaging pins 26 and the corresponding openings 72 automatically draw the remainder of the stack of material into the machine. The sheets to be perforated are drawn through rapidly and each sheet receives numerous perforations before it is discharged into the exit chute 100.

Although the perforating pins 26 and their cooperating openings '72 have been illustrated and described as being arranged in spiral rows, other configurations may be used with satisfactory results. If desired, the pins 26 may be so arranged as to perforate a word such as void or cancelled in the sheet as it is passed through the machine. Other changes and modifications may obviously be made without departing from the invention as described in the appended claims.

What is claimed is:

1. A machine for punching holes in articles such as sheets of paper, checks or the like, comprising a housing, a pair of spaced parallel cylinders rotatably mounted in a vertical position within said housing, one of said cylinders having a plurality of perforating pins projecting from the surface thereof, said cylinder being fitted upon a cylindrical supporting core, said second cylinder being hollow and provided with a plurality of through openings on the surface thereof, said through openings being of like number and location relative to the perforating pins on said first cylinder, said second cylinder being fitted upon a perforated hollow cylindrical supporting core, a feed chute for said housing to direct articles to be perforated between said cylinders, means including a stripper blade adjacent one of said cylinders to remove the perforated articles from said cylinder and out of said housing, a vertical stationary spiral-shaped member within said hollow cylinder to prevent clogging therein of punched-out waste particles and to direct said waste particles from said housing, and means to rotate said cylinders in synchronism, said last mentioned means including adjustable gears mounted upon an end of each of said cylindrical cores.

2. A machine for punching holes in articles such as sheets of paper and the like, comprising a housing, an elongated vertically positioned perforating cylinder having a plurality of perforating pins extending from the surface thereof, said perforating cylinder being mounted upon an elongated concentric supporting core, an adjustable drive gear mounted upon one end of said supporting core, a hollow cylinder mounted in a vertical position adjacent said perforating cylinder, said hollow cylinder being provided with a plurality of through openings of such number and location as to match the perforating pins extending from said perforating cylinder, said second cylinder being mounted upon a concentric hollow supporting core having through openings to match the openings in said second cylinder, a. vertically positioned stationary spiral blade member extending within the full length of said core for the prevention of clogging therein of punched-out waste particles, and an adjustable gear mounted on one end of said last mentioned supporting core for meshing relationship with said first mentioned gear, whereby the position of said perforating pins relative to said through openings may be kept in proper position regardless of pin and opening wear.

References Cited in the file of this patent UNITED STATES PATENTS 213,908 Koch Apr. 1, 1879 1,364,717 Coe Ian. 4, 1921 2,085,863 Lindborn July 6, 1937 2,291,227 Iknayan July 28, 1942 2,299,816 Goebel Oct. 27, 1942 2,546,469 Muddiman Mar. 27, 1951 2,563,318 Dodge Aug. 7, 1951 

